All categories

3 years ago

An item costs $ 390 before tax, and the sales tax is $31.20 .

Mathematics

2 answers:

crimeas [40]3 years ago

4 0

Answer:

7.80/390=0.02=2%

Step-by-step explanation:

Brut [27]3 years ago

4 0

Answer:

Step-by-step explanation:

390x=31.20

divide each side by 390

you get 0.08

multiply that by 100

you get 8%

You might be interested in

What is the answer to -4-3x=6x-6

mario62 [17]

x=2/9

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−4−3x=6x−6

−4+−3x=6x+−6

−3x−4=6x−6

Step 2: Subtract 6x from both sides.

−3x−4−6x=6x−6−6x

−9x−4=−6

Step 3: Add 4 to both sides.

−9x−4+4=−6+4

−9x=−2

Step 4: Divide both sides by -9.

−9x

−9

−2

−9

6 0

3 years ago

Read 2 more answers

An amount of $45,000 is borrowed for 13 years at 6.75% interest, compounded annually. If the loan

Ugo [173]

Answer:

$104850

Step-by-step explanation:

Given data

Principal= $45,000

Time = 13 years

Rate= 6.75%

the compound interest expression is

A= P(1+r)^t

A=45000(1+0.0675)^13

A= 45000(1.0675)^13

A= 45000*2.33

A= $104850

Hence the final amount will be $104850

5 0

3 years ago

Find the value of n that satisfies 2(n+1)! + 6n! = 3(n+1), where $n! = n\cdot (n-1)\cdot (n-2) \cdots 2\cdot 1$.

Murrr4er [49]

Answer:

$n = 5$

Step-by-step explanation:

Given

$2(n+1)! + 6n! = 3(n+1)!$

Required

Find n

Simplify (n + 1)!

$2(n+1)*n! + 6n! = 3(n+1)*n!$

Factorize

$n![2(n+1) + 6] = 3(n+1)*n!$

Divide both sides by n!

$2(n+1) + 6 = 3(n+1)$

Open brackets

$2n + 2 + 6 = 3n + 3$

$2n + 8 = 3n + 3$

Collect like terms

$2n - 3n = 3 -8$

$-n =-5$

Multiply both sides by -1

$n = 5$

7 0

3 years ago

What does 1,580÷25=I know the answer, I need to show how I got it.

ziro4ka [17]

$\begin{gathered} \sqrt[25]{1580} \\ 1\text{ and 15 cannot divide 25 therefore, we use the first three numbers to divide 25} \\ \frac{158}{25}\text{ = }6\text{ remainder 8} \\ \text{You have to carry that remainder which is 8 and combine it with the 0 in 1580.} \\ \frac{80}{25}\text{ = }3\text{ remainder 5} \\ The\text{ remainder 5 will also divide 25} \\ \frac{5}{25}=0.2 \\ The\text{ quotient values are 63 + 0.2 = 63.2} \end{gathered}$

4 0

1 year ago

17. Joan's Candy Emporium is having a sale. Three pounds of gummy bunnies are

Kazeer [188]

Answer:

$1.99 per pound

Step-by-step explanation:

5.97 / 3 = 1.99

5 0

3 years ago